Collision cascades near symmetrical tilt grain boundaries in UO2 have
been investigated at energy of 5 keV. Primary knock-on atom with a
distance of 3.5 nm from grain boundaries has been accelerated towards
and perpendicular to the interface. Evolvement of the cascade is tracked
employing classical molecular dynamics. Time evolution of the number of
displaced atoms, Frenkel pairs and replacement atoms created by cascade
is given. Simulations suggest that misorientation angle of the grain
boundary has no effect on the final number of displaced atoms and
replacement atoms. Additionally, final spatial distribution of displaced
atoms at the end of the simulations has been investigated.